2-54
Finisher Service Manual
4024-110
288.00 Sensor (diverter gate) on jam
4
Check the drive motor (buffer/transport) connection.
Is the above motor connected properly?
Replace the drive
motor (buffer/
transport). Go to
“Drive motor
(buffer/
transport) and
belt (buffer/
transport)
removal” on
page 4-115
.
Replace the
connection.
5
Perform a test print.
Does the error still occur?
Replace the
finisher controller
card assembly.
Go to
“Finisher
controller card
assembly
removal” on
page 4-118
.
Problem solved.
Step
Check
Yes
No
1
Check the media path.
1. Open the bridge unit top cover assembly of the
bridge unit assembly.
2. Check the six bridge unit pinch rolls on the bridge
unit top cover assembly and the two transport belts
by turning them with your fingers.
Are the bridge unit pinch rolls and transport belts
installed correctly?
Go to step 2.
Clean or replace
the appropriate
transport belts
and bridge unit
pinch roll, and
clean the media
path.
2
Are the six bridge unit pinch rolls on the bridge unit top
cover assembly and two transport belts free of
damage.
Go to step 3.
Clean or replace
the appropriate
transport belts
and bridge unit
pinch roll, and
clean the media
path.
3
Check the media path.
1. Open the finisher front door assembly of the
finisher.
2. Remove the top cover and left upper cover.
3. Open the entrance pinch guide assembly to
upward.
4. Check the media entrance pinch guide pinch roll on
the entrance pinch guide assembly and media
entrance roll assembly by turning them with your
fingers.
Are the media entrance pinch guide pinch roll and
media entrance roll assembly installed correctly?
Go to step 4.
Clean or replace
the appropriate
transport belts
and bridge unit
pinch roll, and
clean the media
path.
Step
Check
Yes
No
Summary of Contents for W850dn
Page 8: ...viii Finisher Service Manual 4024 110 ...
Page 12: ...xii Finisher Service Manual 4024 110 ...
Page 22: ...1 6 Finisher Service Manual 4024 110 ...
Page 155: ...Repair information 4 3 4024 110 5 Remove the bridge unit assembly B from the printer B ...
Page 240: ...4 88 Finisher Service Manual 4024 110 25 Remove the main paddle shaft assembly Rear J F K L ...
Page 272: ...4 120 Finisher Service Manual 4024 110 ...
Page 282: ...5 10 Finisher Service Manual 4024 110 ...
Page 284: ...6 2 Finisher Service Manual 4024 110 ...
Page 290: ...7 6 Finisher Service Manual 4024 110 Assembly 4 Covers 3 7 5 9 2 10 6 4 8 1 ...
Page 292: ...7 8 Finisher Service Manual 4024 110 Assembly 5 Covers and front door 3 7 5 2 6 4 1 ...
Page 294: ...7 10 Finisher Service Manual 4024 110 Assembly 6 Stacker bin lift 5 4 6 3 1 2 8 2 3 3 3 1 7 7 ...
Page 298: ...7 14 Finisher Service Manual 4024 110 Assembly 8 Stapler 3 7 5 2 6 4 8 1 ...
Page 300: ...7 16 Finisher Service Manual 4024 110 Assembly 9 Media eject 8 4 9 6 2 7 5 1 3 11 2 3 6 5 10 ...
Page 310: ...7 26 Finisher Service Manual 4024 110 Assembly 14 Electronics 3 5 2 6 4 1 ...
Page 312: ...7 28 Finisher Service Manual 4024 110 Assembly 15 Cables 1 3 7 5 2 6 4 1 ...
Page 316: ...7 32 Finisher Service Manual 4024 110 ...
Page 322: ...I 6 Finisher Service Manual 4024 110 ...